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propensive's profile
Jon Pretty
Jon Pretty
Jon Pretty
@propensive

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Jon Pretty

@propensive

Supporting Scala through professional training and open-source software. Responsible for Magnolia, Fury, Scala World and Functional Africa.

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propensive.com
Joined July 2010

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    1. Alex Nedelcu‏ @alexelcu 31 Aug 2018

      Love #Scala, love its ecosystem, love FP in Scala ❤️ Who's with me? 😺

      33 replies 91 retweets 552 likes
    2. Miles Sabin‏ @milessabin 31 Aug 2018
      Replying to @alexelcu

      Yup, and looking forward to Scala 3.

      2 replies 1 retweet 39 likes
    3. Alex Nedelcu‏ @alexelcu 31 Aug 2018
      Replying to @milessabin

      Yup, can't wait for untagged union types

      4 replies 1 retweet 7 likes
    4. Jarrod Urban‏ @DgtlNmd 31 Aug 2018
      Replying to @alexelcu @milessabin

      What do you mean by "untagged"? Do you mean you don't have to define them with a type definition before you use them?

      1 reply 0 retweets 1 like
    5. Alex Nedelcu‏ @alexelcu 31 Aug 2018
      Replying to @DgtlNmd @milessabin

      Tagged means that the value will have some bits of information to discriminate b/w the types. In Scala this means boxing in a class. Untagged means you don’t, so unboxed and you do your own discrimination. This is `A | B` vs `Either[A, B]` for example. Checkout TypeScript.

      1 reply 0 retweets 2 likes
    6. Jarrod Urban‏ @DgtlNmd 31 Aug 2018
      Replying to @alexelcu @milessabin

      Cool. Thanks for the help :+1:

      1 reply 0 retweets 0 likes
    7. yes man‏ @courieti 31 Aug 2018
      Replying to @DgtlNmd @alexelcu @milessabin

      How it's works when it have to discreminate between two primitive type ?

      1 reply 0 retweets 0 likes
      Jon Pretty‏ @propensive 31 Aug 2018
      Replying to @courieti @DgtlNmd and

      They get boxed.

      2:04 PM - 31 Aug 2018
      0 replies 0 retweets 0 likes

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